diff options
author | Cyrille Bagard <nocbos@gmail.com> | 2013-06-30 13:01:38 (GMT) |
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committer | Cyrille Bagard <nocbos@gmail.com> | 2013-06-30 13:01:38 (GMT) |
commit | e5314b83cf2521f4a1fee5d3cbb5011d7ac7bff7 (patch) | |
tree | 3af6d5b430d3a07753e273e9ddb1ff656e706661 /src/arch/arm/v456/register.c | |
parent | 0f3bbcb376ee4f76142ac4ddf729403fecac2641 (diff) |
Provided first basic support for a few ARM instructions.
git-svn-id: svn://svn.gna.org/svn/chrysalide/trunk@354 abbe820e-26c8-41b2-8c08-b7b2b41f8b0a
Diffstat (limited to 'src/arch/arm/v456/register.c')
-rw-r--r-- | src/arch/arm/v456/register.c | 251 |
1 files changed, 251 insertions, 0 deletions
diff --git a/src/arch/arm/v456/register.c b/src/arch/arm/v456/register.c new file mode 100644 index 0000000..7e101a3 --- /dev/null +++ b/src/arch/arm/v456/register.c @@ -0,0 +1,251 @@ + +/* OpenIDA - Outil d'analyse de fichiers binaires + * registers.c - aides auxiliaires relatives aux registres ARM v4/5/6 + * + * Copyright (C) 2013 Cyrille Bagard + * + * This file is part of OpenIDA. + * + * OpenIDA is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * OpenIDA is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with Foobar. If not, see <http://www.gnu.org/licenses/>. + */ + + +#include "register.h" + + +#include <stdio.h> + + +#include "../../register-int.h" + + + +/* Représentation d'un registre ARM v4/5/6 (instance) */ +struct _GArmV456Register +{ + GArchRegister parent; /* Instance parente */ + + uint8_t index; /* Indice du registre */ + +}; + + +/* Représentation d'un registre ARM v4/5/6 (classe) */ +struct _GArmV456RegisterClass +{ + GArchRegisterClass parent; /* Classe parente */ + +}; + + +#define MAX_REGNAME_LEN 8 + + +/* Initialise la classe des registres ARM v4/5/6. */ +static void g_armv456_register_class_init(GArmV456RegisterClass *); + +/* Initialise une instance de registre ARM v4/5/6. */ +static void g_armv456_register_init(GArmV456Register *); + +/* Produit une empreinte à partir d'un registre. */ +static guint g_armv456_register_hash(const GArmV456Register *); + + + +/* Indique le type défini pour une représentation d'un registre ARM v4/5/6. */ +G_DEFINE_TYPE(GArmV456Register, g_armv456_register, G_TYPE_ARCH_REGISTER); + + +/****************************************************************************** +* * +* Paramètres : klass = classe à initialiser. * +* * +* Description : Initialise la classe des registres ARM v4/5/6. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv456_register_class_init(GArmV456RegisterClass *klass) +{ + +} + + +/****************************************************************************** +* * +* Paramètres : reg = instance à initialiser. * +* * +* Description : Initialise une instance de registre ARM v4/5/6. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +static void g_armv456_register_init(GArmV456Register *reg) +{ + GArchRegister *base; /* Version basique */ + + base = G_ARCH_REGISTER(reg); + + base->hash = (reg_hash_fc)g_armv456_register_hash; + base->compare = (reg_compare_fc)g_armv456_register_compare; + base->print = (reg_print_fc)g_armv456_register_print; + +} + + +/****************************************************************************** +* * +* Paramètres : index = indice du registre correspondant. * +* * +* Description : Crée une réprésentation de registre ARM v4/5/6. * +* * +* Retour : Adresse de la structure mise en place. * +* * +* Remarques : - * +* * +******************************************************************************/ + +GArmV456Register *g_armv456_register_new(uint8_t index) +{ + GArmV456Register *result; /* Structure à retourner */ + + result = g_object_new(G_TYPE_ARMV456_REGISTER, NULL); + + result->index = index; + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : reg = registre à consulter. * +* * +* Description : Fournit l'indice d'un registre ARM v4/5/6. * +* * +* Retour : Inditifiant représentant le registre. * +* * +* Remarques : - * +* * +******************************************************************************/ + +uint16_t g_armv456_register_get_index(const GArmV456Register *reg) +{ + return reg->index; + +} + + +/****************************************************************************** +* * +* Paramètres : reg = opérande à consulter pour le calcul. * +* * +* Description : Produit une empreinte à partir d'un registre. * +* * +* Retour : Bilan de l'opération. * +* * +* Remarques : - * +* * +******************************************************************************/ + +static guint g_armv456_register_hash(const GArmV456Register *reg) +{ + return reg->index; + +} + + +/****************************************************************************** +* * +* Paramètres : a = premier opérande à consulter. * +* b = second opérande à consulter. * +* * +* Description : Compare un registre avec un autre. * +* * +* Retour : Bilan de la comparaison. * +* * +* Remarques : - * +* * +******************************************************************************/ + +int g_armv456_register_compare(const GArmV456Register *a, const GArmV456Register *b) +{ + int result; /* Bilan à retourner */ + + if (a->index < b->index) + result = -1; + else if (a->index > b->index) + result = 1; + else + result = 0; + + return result; + +} + + +/****************************************************************************** +* * +* Paramètres : reg = registre à transcrire. * +* line = ligne tampon où imprimer l'opérande donné. * +* syntax = type de représentation demandée. * +* * +* Description : Traduit un registre en version humainement lisible. * +* * +* Retour : - * +* * +* Remarques : - * +* * +******************************************************************************/ + +void g_armv456_register_print(const GArmV456Register *reg, GBufferLine *line, AsmSyntax syntax) +{ + char key[MAX_REGNAME_LEN]; /* Mot clef principal */ + size_t klen; /* Taille de ce mot clef */ + + switch (reg->index) + { + case 0 ... 12: + klen = snprintf(key, MAX_REGNAME_LEN, "r%hhu", reg->index); + break; + case 13: + klen = snprintf(key, MAX_REGNAME_LEN, "sp"); + break; + case 14: + klen = snprintf(key, MAX_REGNAME_LEN, "lr"); + break; + case 15: + klen = snprintf(key, MAX_REGNAME_LEN, "pc"); + break; + case 16: + klen = snprintf(key, MAX_REGNAME_LEN, "cpsr"); + break; + case 17: + klen = snprintf(key, MAX_REGNAME_LEN, "spsr"); + break; + default: + klen = snprintf(key, MAX_REGNAME_LEN, "r??"); + break; + } + + g_buffer_line_insert_text(line, BLC_ASSEMBLY, key, klen, RTT_REGISTER); + +} |